Li Ching Yun had an advice for living a long life: "Keep a quiet heart, sit like a tortoise, walk sprightly like a pigeon and sleep like a dog" - and apparently, he followed his own advice, because Li died at a ripe old age of 256!

Environmental Graffiti has the story:

By his own admission he was born in 1736 and had lived 197 years. However, in 1930 a professor and dean at Minkuo University by the name of Wu Chung-chien, found records “proving” that Li was born in 1677. Records allegedly showed that the Imperial Chinese Government congratulated him on his 150th and 200th Birthdays.

Adam Stanhope: so some things are true, therefore this could be? No. Humans just don't live that long, and the evidence for this outweighs the evidence for this man's ridiculous claim, especially considering the vague nature of the documentation involved.